Create Instance and Security Group with Terraform on AWS

Learn how to automate AWS infrastructure using Terraform! In this step-by-step tutorial, you’ll create an EC2 instance and configure security groups with Terraform while mastering Infrastructure as Code (IaC) concepts. We’ll cover Terraform variables, datasources (to fetch the latest Amazon Linux 2 AMI), security group rules for SSH and web traffic, and output values for easy access to instance details. By the end, you’ll deploy a fully functional EC2 instance in AWS and clean up resources efficiently.

What’s Covered:
✅ Define Terraform variables for AWS region, instance type, and key pairs
✅ Create security groups for SSH (port 22) and web traffic (ports 80, 443)
✅ Use Terraform datasources to fetch the latest AMI ID dynamically
✅ Configure EC2 instances with user data scripts and security groups
✅ Execute Terraform commands: init, validate, plan, apply, and destroy
✅ Access your application and clean up resources to avoid AWS costs

Prerequisites:
AWS account with IAM credentials
Terraform CLI installed
Pre-created EC2 key pair named terraform-key

Terraform, AWS EC2, Security Groups, Infrastructure as Code, Terraform Variables, Terraform Datasources, AWS AMI, Cloud Automation, Terraform Outputs, Cloud Security, DevOps, Cloud Computing
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